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130 lines
3.9 KiB
C
130 lines
3.9 KiB
C
/*
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* PBR-nht Header
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* Copyright (C) 2018 Cumulus Networks, Inc.
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* Donald Sharp
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*
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* FRR is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* FRR is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __PBR_NHT_H__
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#define __PBR_NHT_H__
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#include <lib/zclient.h>
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#include <lib/nexthop_group.h>
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#include "pbr_map.h"
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#include "json.h"
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#define PBR_NHC_NAMELEN PBR_MAP_NAMELEN + 10
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struct pbr_nexthop_group_cache {
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char name[PBR_NHC_NAMELEN];
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uint32_t table_id;
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struct hash *nhh;
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/*
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* If all nexthops are considered valid
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*/
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bool valid;
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bool installed;
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};
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struct pbr_nexthop_cache {
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struct pbr_nexthop_group_cache *parent;
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struct nexthop *nexthop;
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bool valid;
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};
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extern void pbr_nht_write_table_range(struct vty *vty);
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#define PBR_NHT_DEFAULT_LOW_TABLEID 10000
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#define PBR_NHT_DEFAULT_HIGH_TABLEID 11000
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extern void pbr_nht_set_tableid_range(uint32_t low, uint32_t high);
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/*
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* Get the next tableid to use for installation.
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*
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* peek
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* If set to true, retrieves the next ID without marking it used. The next
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* call will return the same ID.
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*/
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extern uint32_t pbr_nht_get_next_tableid(bool peek);
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/*
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* Get the next rule number to use for installation
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*/
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extern void pbr_nht_write_rule_range(struct vty *vty);
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#define PBR_NHT_DEFAULT_LOW_RULE 300
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#define PBR_NHT_DEFAULT_HIGH_RULE 1300
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extern void pbr_nht_set_rule_range(uint32_t low, uint32_t high);
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extern uint32_t pbr_nht_get_next_rule(uint32_t seqno);
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extern void pbr_nhgroup_add_cb(const char *name);
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extern void pbr_nhgroup_add_nexthop_cb(const struct nexthop_group_cmd *nhg,
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const struct nexthop *nhop);
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extern void pbr_nhgroup_del_nexthop_cb(const struct nexthop_group_cmd *nhg,
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const struct nexthop *nhop);
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extern void pbr_nhgroup_delete_cb(const char *name);
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extern bool pbr_nht_nexthop_valid(struct nexthop_group *nhg);
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extern bool pbr_nht_nexthop_group_valid(const char *name);
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extern struct pbr_nexthop_group_cache *pbr_nht_add_group(const char *name);
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extern void pbr_nht_change_group(const char *name);
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extern void pbr_nht_delete_group(const char *name);
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extern void pbr_nht_add_individual_nexthop(struct pbr_map_sequence *pbrms,
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const struct nexthop *nhop);
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extern void pbr_nht_delete_individual_nexthop(struct pbr_map_sequence *pbrms);
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/*
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* Given the tableid of the installed default
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* route, find the nexthop-group associated with
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* it, then find all pbr-maps that use it and
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* install/delete them as well.
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*/
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extern void pbr_nht_route_installed_for_table(uint32_t table_id);
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extern void pbr_nht_route_removed_for_table(uint32_t table_id);
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/*
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* Given the nexthop group name, lookup the associated
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* tableid with it
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*/
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extern uint32_t pbr_nht_get_table(const char *name);
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extern bool pbr_nht_get_installed(const char *name);
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extern char *pbr_nht_nexthop_make_name(char *name, size_t l, uint32_t seqno,
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char *buffer);
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extern void pbr_nht_show_nexthop_group(struct vty *vty, const char *name);
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extern void pbr_nht_json_nexthop_group(json_object *j, const char *name);
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/*
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* When we get a callback from zebra about a nexthop changing
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*/
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extern void pbr_nht_nexthop_update(struct zapi_route *nhr);
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/*
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* When we get a callback from zebra about an interface status update.
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*/
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extern void pbr_nht_nexthop_interface_update(struct interface *ifp);
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extern void pbr_nht_init(void);
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#endif
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